Dabura, Darkness Perfected (BT9-071) [Universal Onslaught]

Product Details

[Counter:Play] Play this card.
[Permanent] If all of your energy is black, reduce the energy cost of this card in your hand and Drop Area by 1.
[Auto] During your opponent's turn : When you play this card, choose up to 1 of your opponent's Battle Cards and it can't attack or activate skills for the duration of the turn.